是否可以从外部javascript访问控制台命令行API（例如Firebug或Chrome Inspector控制台的$$和traceAll）？

Question

Is it possible to access the Command Line Api from an external api?

Simple Example:

HTML

  <div id="myDiv"></div>
  <script src="myScript.js"></script>

myScript.js

$$('#myDiv').textContent = 'this will not work';

I do not wan't to load an external library like jQuery or Zepto because seens like this is already loaded locally.

Answer 1

To answer your question, no. But I don't think you really want to. The API may change, breaking your code. If all you're looking for is the query selector. I think you are better off using a snippet found on the MDN.

function $ (selector, el) {
    if (!el) {el = document;}
    return el.querySelector(selector);
}
function $$ (selector, el) {
    if (!el) {el = document;}
    return el.querySelectorAll(selector);
    // Note: the returned object is a NodeList.
    // If you'd like to convert it to a Array for convenience, use this instead:
    // return Array.prototype.slice.call(el.querySelectorAll(selector));
}
alert($('#myID').id);

Document.querySelector